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Attach parameter to button.addTarget action in Swift
...nal parameters to the buttonClicked method, for example an indexPath or urlString, you can subclass the UIButton:
class SubclassedUIButton: UIButton {
var indexPath: Int?
var urlString: String?
}
Make sure to change the button's class in the identity inspector to subclassedUIButton. You ...
Markdown: continue numbered list
...
Notice how in Macmade's solution, you can see an extra line of code above the "Code block".
Here are two better solutions:
Indent the code block by an extra 4 spaces (so usually 8, in this nested list example, 12). This will put the code in a <pre> element. On SO,...
try/catch versus throws Exception
...t to use try-catch.
There is a rule "An overridden method cannot throw any extra exception other than what its parent class is throwing". If there is any extra exception that should be handled using try-catch.
Consider this code snippet.
There is a simple base class
package trycatchvsthrows;
publi...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...argc, char *argv[])
{
BAR("first test");
BAR("second test: %s", "a string");
return 0;
}
This same trick is used to:
count the number of arguments
expand differently depending on the number of arguments
append to __VA_ARGS__
Explanation
The strategy is to separate __VA_ARGS__ into...
iOS 6 apps - how to deal with iPhone 5 screen size? [duplicate]
...ld tell in today's presentation. They will be letterboxed or basically the extra 88 points in height would simply be black.
If you only plan to support iOS 6+, then definitely consider using Auto Layout. It removes all fixed layout handling and instead uses constraints to lay things out. Nothing wi...
Load local JSON file into variable
....79281",
"name": " contents:mqq_error"
}
]
}
You also had an extra }.
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Removing duplicate values from a PowerShell array
...put:
Apples
Banana
This uses the Property parameter to first Trim() the strings, so extra spaces are removed and then selects only the -Unique values.
More info on Sort-Object:
Get-Help Sort-Object -ShowWindow
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What is the use of the pipe symbol in YAML?
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Also look at in-yaml-how-do-i-break-a-string-over-multiple-lines
– Oliver
Apr 12 '18 at 13:18
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Scroll Automatically to the Bottom of the Page
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Works in newer versions of Chrome now, but some of the extra options (like smooth scrolling) don't seem to be implemented yet.
– Matt Zukowski
Feb 17 '16 at 16:42
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Bash empty array expansion with `set -u`
...iable is considered set if a subscript has been assigned a value. The null string is a valid value.
No subscript has been assigned a value, so the array isn't set.
But while the documentation suggests an error is appropriate here, this is no longer the case since 4.4.
$ bash --version | head -n ...